为治理旧砂吸送粉尘污染,保障工人健康及设备安全运行,我厂在83年初设计制造成功旋转反吹布袋除尘器,用于旧砂吸送的尾气净化。该装置设计合理,结构紧凑,运转正常,效果良好;单台除尘器的效率达92～99.5%;在其前面加装一个扩散器后,除尘总效率达99.95%。 In order to control the dust pollution of the old sand and to ensure the workers’ health and the safe operation of the equipment, our factory designed and manufactured a rotary rotary backflush bag filter in early 83 for purifying the exhaust gas of the old sand. The design of the device is reasonable, the structure is compact, the operation is normal and the effect is good. The efficiency of a single dust collector reaches 92-99.5%. After installing a diffuser in front of the device, the total efficiency of dust removal reaches 99.95%.